SS Dronning Maud was a 1,489 ton steel-hulled steamship built in 1925 by the Norwegian shipyard Fredrikstad Mekaniske Verksted in Fredrikstad. Dronning Maud was ordered by the Trondheim-based company Det Nordenfjeldske Dampskipsselskap for the passenger and freight service Hurtigruten along the coast of Norway. She served this route as the company flagship until she was sunk under controversial circumstances during the 1940 Norwegian Campaign.

HMY Alexandra was a steamship built as a British royal yacht, completed in 1908. Normally transporting Britain's royal family to European ports, Alexandra served as a hospital ship during the First World War. After 17 years of British service, she was sold to Norwegian commercial interests in 1925. Renamed Prins Olav, she was first used as a luxury cruise ship on trips to the North Cape, she was converted to take more passengers and cargo. In 1937 she began sailing as a Hurtigruten passenger/cargo ship along the coast of Norway. After being requisitioned by the Norwegian government following the 9 April 1940 German invasion of Norway, she transported troops for the Norwegian war effort. Prins Olav was sunk by German bombers on 9 June 1940, while attempting to escape to the United Kingdom as the Norwegian Campaign was coming to an end.